Vehicle-spring.



1901849999. PATBNTBD APR. 2,190?.

M. BMMBRIGH.

VEHICLE SPRING.

APPLICATION FILED JAN. s1, 19o7.

taken in connection with UNITED STATES PATENT OEEICE.

.mirrix EinIEEICII, CE NEw HAVEN, CONNECTICUT, AssIeNoE OE CNE- IIALE To GEORGE ROTMAN, or NEw IIAvEN, CONNECTICUT.

VEHICLE-SPRING.'

No. sesgos,

Specification of Letters Patent.

Patented April 2, 1907.

To fall 'lL-7mm it may concern,.-

Be it knovm that I, MARTIN EMMERICH, a citizen of the United States, residing at New Haven, in the county of. New Haven. and State of Connecticut, have invented a new and useful Improvement in Vehicle-Springs and l do hereby declare the following, when the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same,`and which said drawings constitute part of this speciication,and represent, in-

Figure 1, a side view of an elliptical vehicle spring showing my improved auxiliary spring connected therewith; Fig. 2, a front view of my auxiliary spring detached; Fig. 3, a side view of the same.

This invention relates to an improvement in vehicle-springs for vehicles adapted to carry a comparatively heavy load and in which the springs are subject to sudden action and in which comparatively yielding springs are desirable-such, for instance, as motor-vehicles employing elliptical springs-the object of the invention being to provide an auxiliary spring in connection with an elli,

tical spring to take the strain upon t e springs caused by the Wheelsy running into a rut or over an obstruction in the road; and the invention consists in arranging an auxiliary spring at one end of an elliptical spring, as will more fully hereinafter appear.

M y invention may be employed in connection with an elliptical spring o1' usual construction comprising upper leaves 2 and lower leaves 3, which at oneend are connected together by a bolt 4 in the usual manner. The rear end of the lower leaf 3 is connected with a yoke 5 by a bolt 6, this yoke being mounted at the up er end of a rod 7, which extends down free y through a top'plate 8 and freely through a lower plate 9, the bolt being threaded at its lower end 'to receive nuts l() and 11. tween the top and bottom coiled spring 12. The rear end of the upper leaf 2 is connected to the upper ends of rods 13 and 14- by a bolt 15, the rods extending down freely through the top plate 8 in a plano with and. parallel to the rod 7 and threaded at their lower ends for positive engagement with the bottom Ylate 9, the ends of the rods projecting belbw the bottom plates 8 and?) a bottom Around the rod and bethe top plate 8. If downward pressure is exf erted upon the lowerleaf 3, this plate will be depressed against the action of the springs 12, 19, and 20, and as the top plate is depressed the rod 7 passes through the bottom plate 9. Under reaction of the leaf 3 the rod 7 may rise independent of the top plate 8, and, if de- -sired, a buEer-spring 21 may be inserted between Athe nut 10 and the under faceyof the plate 9, so that if the rod is suddenly lifted the blow of the nut 10 upon the under side of the plate 9 will be checked. It will thus be seen that the loadiscarri'ed not onlyl by an elliptical spring, but also by the coiled springs 12, 19, and 20, and that sudden move-Y ment of the elliptical springs occasioned by running into a rut or over an obstruction will be taken by the auxiliary spring and not transmit the jar to the vehicle-body. In some vehicles the upper leaf of the spring is not used, in which case the side rods are connected to the gooseneck or crane, to which the end of the lower leaf or half-elli tical spring is usually attached, they auxiliary spring acting in the same way as above described.

I claim- .l

1. The combination with the up l'r and lower leaves of an elliptical's ring, o a yoke to whiclnene end of the lower eaf 1s attached, said yoke mounted at the upper end of a central rod the end ofthe upper leaf connected with the upper ends of two side rods arranged one on either side of the central rod, a top plate through which said rods extend, a-bottom plate with which the side rods yare engaged and through which the central rod passes, and springs around said rodsbetween said plates, substantially as described.

2. The combination withv the upper and lower leaves of an elliptical s rin of a yoke' to which one end of the lower caf 1s attached, said yoke mounted at the upper end of a cen-y tral rod the end of the upper leaf connected with the upper ends of two side rodsarranged IOO one on either side of the central rod, a top said plates, substantially as described.

plate through Wlfiohsaid rods extend, a'bot- 3. The' herein-described auxiliaryfspring for vehicles comprising a top plate and a lower late, a Central rod passing freely throucfl thes'aid plates,- a nut at the lower end el said rod, side rods lextendingy freely through the top plateand xed tothe lower 'l plate, collars aoundlsaid side rods above the topplate, coil-springs surrounding said rods Y between-'said plates, a yoke mounted at the'` upper end of said central rod, and the upper endjof the side rods be'we'd inward over said yokesubstantially as described.A

In testimony' whereof Iv have signed this s'peoiieatiowin the presenoe'of two subscriblng Witnesses.

MARTIN EmrERIoHL Witnessesz,

FREDERICy C. ERLE,

CLARA L. WEED. 

